Home / 86,500.77-119,374.61-54,658.05

Finding the Fourth Proportional to 86,500.77, 119,374.61 and 54,658.05

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Solution

The fourth proportional to 86,500.77, 119,374.61 and 54,658.05 is: 75,430.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,500.77 : 119,374.61 = 54,658.05 : x
  2. Step 2: Convert to fraction form
    86,500.77/119,374.61 = 54,658.05/x
  3. Step 3: Cross multiply
    86,500.77x = 119,374.61 × 54,658.05
  4. Step 4: Simplify right side
    86,500.77x = 6,524,783,128.82
  5. Step 5: Solve for x
    x = 6,524,783,128.82/86,500.77
  6. Step 6: Final answer
    x = 75,430.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.